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An Experimental Test Of The Effects Of Sleep Deprivation On Approach Behavior, Rebecca L. Campbell

Graduate Theses and Dissertations

Emotion regulation and sleep have been identified as mechanisms that may be involved in the development and maintenance of many mental health disorders. However, there has been little research into the relation between sleep and emotion regulation. To address this gap in knowledge, a novel study was conducted. We hypothesized that sleep deprived individuals would demonstrate less approach behavior toward a negatively valenced stimulus, as well as increased self-reported avoidance, compared to a control group. To test this, a randomized controlled experiment using a behavioral measure of approach and a self-report measure of avoidance was conducted. Fifty-two healthy individuals ages …

Teen Stress And The High School Experience: Fostering The Adaptive Abilities To Survive And Advance, William P. Dewitt

Graduate Theses and Dissertations

The purpose if this study is to examine the stress experience of teenagers during their high school years. The study uses existing research to identify causes of stress and stress- management techniques and then gathers students’ perceptions through surveys and a group interview to provide student voice on the issue of stress.

Recent nation-wide efforts have been made in schools to provide more supports for the social and emotional well-being of students, but despite these efforts, stress levels of high school students remain elevated. Understanding the ways in which students identify stress and the adaptive abilities they use to manage …

The Effects Of Auditory And Olfactory Cues On Visual Attention Toward Food Images Under Acute Stress, Reza Moltaji

Graduate Theses and Dissertations

Psychological stress has been shown to increase preference for high calorie foods containing high levels of sugar and fat. Since excessive intake of high calorie foods may increase potential risk of obesity and other relevant health issues, relieving psychological stress may help in maintaining a balanced diet and good health status. Although a variety of strategies for relieving psychological stress has been suggested, little attention has been paid to regarding whether such strategies can result in balanced diets. Since music therapy and aromatherapy have proven popular approaches to relieving psychological stress, this thesis aimed at determining whether listening to music …

Associations Of Sex, Gender, And Gender Role Beliefs With Mental Health Attitudes, Ariel Erazo

Graduate Theses and Dissertations

Mental health stigma is a strong deterrent for individual with mental illness utilizing mental healthcare. Individuals living with a mental illness experience shame and marginalization due to stigma. Stigma is perpetuated through stereotypes created and used by people in the majority. Studies have been done to assess individual’s attitudes toward mental healthcare seeking in regards to gender, age, race, and profession. This study aimed to look at traditional gender role beliefs, sex, and gender expression as predictors of individual’s mental health attitudes and individual’s views of mental health norms. Using a cross-sectional survey, 392 participants completed scales that included the …

Depressive Symptoms And Survival Among Lung Cancer Patients: Biomarkers And Potential Benefits Of An Ipod- And Mindfulness-Based Intervention., Chelsea J. Siwik

Electronic Theses and Dissertations

Lung cancer patients experience high levels of distress, which commonly manifests as depressive symptoms. Importantly, depressive symptoms have demonstrated prognostic significance in cancer contexts, although the biological pathways by which depressive symptoms lead to poorer survival remain unclear and warrant greater attention. In addition to understanding the biological pathways by which depressive symptoms accelerate disease, identification of efficacious and effective psychological treatments for depressive symptoms are needed to improve both quality and quantity of life for cancer patients. Interventions that reduce depressive symptoms and improve downstream clinical outcomes are certainty needed; however, because many cancer patients face considerable burden, interventions …

A Partial Likelihood Approach To Longitudinal Categorical Data Using A Continuous Time Semi-Markov Chain Model, Kusha A. Mohammadi

Dissertations and Theses (Open Access)

Longitudinal studies have been critical in understanding the characteristics of chronic diseases or interventions. Since many processes have natural multi-categorical responses over time, multi-state stochastic models have been used to estimate the transition rates between stages. Some multi-state models applied in practice assume the Markov property. The Markov property constrains the sojourn distribution to be exponentially distributed. While useful theoretical properties arise by the Markov assumption, we will consider a more flexible framework by allowing arbitrarily distributed waiting times. This describes a semi-Markov process which has already been applied to various fields in Public Health. Similar to Markov model developments, …

Statistical Methods For Functional Annotation-Based Rare Variant Association Analysis, Yiding Ma

Dissertations and Theses (Open Access)

Despite ongoing large-scale population-based whole-genome sequencing (WGS) projects such as the TOPMed program, WGS-based association analysis of complex traits remains a tremendous challenge. External biological knowledge, such as functional annotations based on the ENCODE, Epigenomics Roadmap and GTEx projects, may be helpful in distinguishing causal rare variants from neutral ones; however, each functional annotation can only provide certain aspects of the biological functions. Our knowledge for selecting informative annotations a priori is limited and incorporating non-informative annotations will introduce noise and lose power. In the first part of this dissertation, we propose FunSPU, a versatile and adaptive test that incorporates …

The Intersection Of Diet, Health And The Environment: Plant Based Diets And Public Health, Christine E. Jovanovic

Dissertations and Theses (Open Access)

Both globally and within the United States, chronic disease has become a major driver of mortality and morbidity. In the United States in 2017, the top ten causes of mortality accounted for 74% of all deaths [2]; of these causes, half are closely linked to diet (heart disease, cancer, stroke, Alzheimer’s and diabetes). [3] In 2013, Ioannidis estimated that 26% of deaths and 14% of disability adjusted life years (DALYs) in the United States may be attributable to dietary risk factors, controlling for obesity. [4] At the same time, diet also has an important impact on the environment. Direct emissions …

Exploring Community-Based Weight Loss Initiatives, Retention, And Motivation, Miriam Martinez

Dissertations and Theses (Open Access)

Obesity puts individuals at risk of developing diabetes, cardiovascular disease, and cancer. Traditionally obesity was primarily perceived as a personal disorder requiring treatment at the individual level. Strategies to prevent obesity have shifted to an ecological approach. Organizations such as the World Health Organization recommend population based community approaches that connect people, families, schools, and municipalities. Community programs to facilitate weight loss are an effective strategy to reach large populations. The overall goal of this study is to assess community programs, factors associated with retention, and motivation for completing a community weight-loss initiative. A systematic review was conducted to characterize …

A Mixed- Methods Examination Of The Healthcare, Social Support, And Religious Needs Of Sexual And Gender Minority (Sgm) Older Adults In Texas, Jennifer Lynn Holcomb

Dissertations and Theses (Open Access)

Shared historical and social contexts influence a generational group’s needs, risk factors, and resiliency mechanisms. Sexual and gender minority (SGM) older adults have experienced structural exclusion and systematic discrimination throughout their lifetime. The minority stress model posits that SGM individuals experience stressors, like discrimination, unique to their social status which affect physical and mental health. SGM older adults experience worse physical and mental health outcomes than their heterosexual peers suggesting unique needs for SGM older adults. Research also points to resiliency mechanisms that offset the impact of stressors on SGM older adults. The examination of these needs and resiliency mechanisms …

Consider Us: Analysis Of National Mammography Screening Recommendations On African American Women, Gayla M. Ferguson

Dissertations and Theses (Open Access)

Breast cancer is the second most common cause of cancer related death in women in the United States with one in eight women expected to develop the disease in their lifetime. Unfortunately, breast cancer is the leading cause of cancer related death among African American women. African American women are four times more likely to die from breast cancer that Caucasian women. Mammography screenings are the most effective method of reducing breast cancer mortality in African American women. This study aimed to determine if the changes made to the mammography screening recommendations put forth by the U.S. Preventive Services Task …

The Role Of Dna Methylation In White Matter Hyperintensity Burden: An Integrative Approach, Yunju Yang

Dissertations and Theses (Open Access)

Cerebral white matter hyperintensities (WMH) on MRI are an indicator of cerebral small vessel disease, a major risk factor for vascular dementia and stroke. DNA methylation may contribute to the molecular underpinnings of WMH, which are highly heritable. We performed a meta-analysis of 11 epigenome-wide association studies in 6,019 middle-aged to elderly subjects, who were free of dementia and stroke and were of African (AA) or European (EA) descent. In each study, association between WMH volume and each CpG was tested within ancestry using a linear mixed model, adjusted for age, sex, total intracranial volume, white blood cell count, technical …

Exploration Of Breastfeeding As A Protective Factor For Breast Cancer In South African Women: A Nested Case-Control Study, Booker S. Quiera

Dissertations and Theses (Open Access)

Background. South African’s (SA) breast cancer incidence rate is continually increasing (39 per 100,000 (2012) versus 46.2 per 100,000 (2018) with trends towards later-stage diagnosis. In previous literature, breastfeeding has been assessed as a protective factor for breast cancer; however, the SA population experiences inconsistent breastfeeding trends, rates, and support services. Therefore, this study will evaluate the inverse association between breast cancer and breastfeeding history. Methods. Cases (breast cancer) and controls (mastalgia) were matched 1:1 on clinical visit from May-August 2019 at Groote Schuur Hospital (GSH) in Cape Town, Western Cape, South Africa. Breastfeeding history, breast carcinoma diagnosis, and clinically …

The Influence Of Sodium And Potassium On Blood Pressure Genetics In The Population Architecture Using Genomics And Epidemiology Study, Cynthia S. Bell

Dissertations and Theses (Open Access)

Multiple polymorphisms have shown associations with blood pressure (BP) levels and hypertension status, but the overall genetic effect on BP has been small and accounts for only a small fraction of the variation in population-wide BP characteristics. These weak associations of BP with genotype may not be attributable to the examining the “wrong” single nucleotide polymorphism (SNP) but may instead be the result of noisy BP phenotypes based on mmHg alone. Adding information from the underlying mechanisms of nutritional intake, reuptake, and excretion on BP may produce more informative BP phenotypes to study. To explore this complex relationship between diet, …

Estimating Children’S Health Risks From Recreational Beach Play Following An Oil Spill, Tanu K. Altomare

Dissertations and Theses (Open Access)

Environmental contamination from marine oil spills can have damaging impacts on ecosystems and human health. In 2010, an explosion of the Deepwater Horizon (DWH) oil drilling platform resulted in approximately 1,728 km of shoreline oiling. Existing research characterizes health risk from exposure to oil spill chemicals (OSCs) for adults; however, data on impacts to child health are limited. One objective of the Beach Exposure And Child HEalth Study (BEACHES), funded by the Gulf of Mexico Research Initiative, is to estimate health risks to children between walking and six years of age from exposure to OSCs in a post-oil spill scenario …

The Association Between Assorted Hormonal Contraceptive Methods And Advanced-Stage Epithelial Ovarian Cancer: A Systematic Review, Cheng Cheng

Dissertations and Theses (Open Access)

Epithelial ovarian cancer, the most lethal of the gynecological cancers, is typically diagnosed at advanced stages. Women diagnosed with advance-staged (i.e., stage III and IV according to the International Federation of Gynecology and Obstetrics) epithelial ovarian cancer are more likely to have recurrent episodes within 18 months17. According to a 2012 2016 case analysis conducted by the surveillance, epidemiology, and end results, or SEER program, the incidence of ovarian cancer was 11.4 per 100,000 women in all races per year with the highest incidence in non-Hispanic whites, of 11.9 per 100,000 women and the lowest incidence in Asians / Pacific …

Using S-Predixcan To Identify Associations Of Genetically Determined Gene Expression Levels With Carotid Intima Media Thickness, Andy Bryan A Castaneda

Dissertations and Theses (Open Access)

The aim of the study was to identify associations between predicted gene expression levels using S-PrediXcan and carotid intima media thickness (cIMT) in order to elucidate the etiology of atherosclerosis. Further, we wanted to compare our results to those from a transcriptome wide association study (TWAS) that used actual gene expression levels in whole blood. For our analysis we used summary statistics from a GWAS of cIMT from the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) consortium, tissue-specific gene expression profiles from the GTEx project, and S-PrediXcan prediction models. The TWAS of cIMT that we compared our …

Treatment Outcomes Associated With Implementation Of An Express Sti Testing Model In A Prep Clinic In Austin, Texas, Diane Chau

Dissertations and Theses (Open Access)

It is unknown whether express STI testing is as effective as comprehensive STI testing. The research aims of this study are: (1) to describe the patients who obtained a STI testing at the Kind Clinic between February 01, 2019 to January 31, 2020; (2) to determine the association between STI testing type and sociodemographic factors, clinically-relevant factors, and treatment outcomes; (3) to visualize time-to-treatment among STI type and testing types for comparison on a diagnosis-level and a patient-level. Electronic medical records were abstracted for 2,201 patients that received an STI test during February 01, 2019 and January 31, 2020 at …

Exploration Of Breastfeeding As A Protective Factor For Breast Cancer In South African Women: A Nested Case-Control Study, Quiera S. Booker

Dissertations and Theses (Open Access)

South African’s (SA) breast cancer incidence rate is continually increasing (39 per 100,000 (2012) versus 46.2 per 100,000 (2018) with trends towards later-stage diagnosis. In previous literature, breastfeeding has been assessed as a protective factor for breast cancer; however, the SA population experiences inconsistent breastfeeding trends, rates, and support services. Therefore, this study will evaluate the inverse association between breast cancer and breastfeeding history. Methods. Cases (breast cancer) and controls (mastalgia) were matched 1:1 on clinical visit from May-August 2019 at Groote Schuur Hospital (GSH) in Cape Town, Western Cape, South Africa. Breastfeeding history, breast carcinoma diagnosis, and clinically relevant …

World Assumptions And Growth From Adversity In Parents Of Children With Autism Spectrum Disorder, Karina L. Peters

Doctor of Psychology (PsyD)

Research on trauma and adversity has become increasingly focused on factors associated with posttraumatic growth (PTG). One of the factors identified in research that is associated with PTG is world assumptions, implicit assumptions about the world that facilitate a sense of security. One theory is that trauma and adversity prompt a shift in world assumptions, which in turn influences the development of PTG. While this research body has included various populations (military veterans, cancer survivors, bereaved parents, natural disaster survivors), there has been little research on the relationship between world assumptions and PTG for parents of children with Autism Spectrum …

A Needs Assessment For The Utilization Of Child Life Specialist Bereavement Support Services In An Emergency Veterinary Hospital Setting, Jared R. Negin-Fryers

Graduate Theses/Dissertations

Studies indicate that there is an affective attachment bond, and related emotional involvement that exists between the companion animal and their human owners. Patient companion-animal death within the veterinary hospital, is a daily occurrence, with death rates per patient being significantly higher than in human health care. This comparatively higher death rate is due to the commonplace utilization of professionally sanctioned euthanasia to relieve animal pain and suffering. Companion animal death, may elicit grief reactions that are identical to what is experienced upon the death of a family member. A void currently exists in family centered veterinary care in terms …

Approach And Avoidance Coping Humor Motives And Their Relation To Trauma Exposure And Physical Health, Andrea D. Dorbu

Theses and Dissertations

The present study investigated approach-avoidance motives for humor use and their association with physical health symptoms linked to childhood trauma exposure and adult relationship trauma exposure among military-affiliated people and civilians (N=100). Results indicated that approach-avoidance motives for humor use were not associated with study variables. However, adult relationship trauma exposure had a significant positive association with physical health symptoms among both groups. In addition, childhood trauma exposure was significantly positively associated with adult relationship trauma exposure.

Knowledge, Trait Mindfulness And Perceived Discrimination As It Relates To Coping Self-Efficacy In African American Women, Collins D. Nelson

Theses and Dissertations

This is a cross-sectional study that investigated the relationship between preconception care knowledge, trait mindfulness, perceived discrimination, and coping self-efficacy. It addressed the lack of research into the effects of pregnancy-related distress on maternal mortality in African American women. There were 117 participants ages 18 -30 whose data was collected through an online survey. The results suggest that greater preconception care knowledge predicts greater pregnancy-related distress coping self-efficacy. Trait mindfulness also predicted pregnancy-related distress coping self-efficacy. Perceived discrimination did not predict coping self- efficacy in a negative direction as expected.

Examining The Factor Structures Of The A-Des And Ptci To Identify Unique Predictors Of Ptsd Symptom Clusters In Maltreated Youth, Amanda Howard

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research on childhood posttraumatic stress disorder (PTSD) has increased over the past decade. Youth who experience maltreatment are more likely to exhibit symptoms of PTSD. At present, the literature largely focuses on youth who have experienced general trauma or PTSD symptoms, while maltreated youth are understudied. To date, no studies have examined the psychometric properties of the Adolescent Dissociative Experiences Scale (A-DES) or the Posttraumatic Cognitions Inventory (PTCI) in a sample of maltreated youth. Predictors of childhood PTSD for maltreated youth remain unknown. The present study was the first research study to date to examine the factor structures of the …

The Effects Of Harmful Male Body Representation: Uncovered Through The Lens Of Podcasting, Madelynne Thompson

Honors Theses

A body of recent studies suggest men are objectified in the media, as men report increasing levels of body dissatisfaction and potentially, an array of negative consequences in response. Western media images of men, exemplified through media such as advertisements, television, and social media promote a “drive for muscularity” with attention to the upper body and abdominal region. Societal standards and norms have a documented influence on self-concept, and the current study investigates explicitly which influences hold the greatest magnitude during the development of one’s self-perception. In the present thesis project, men aged 18-25 were interviewed to gauge their perspectives …

Envisioning Success: An In Depth Look At The Relationship Between Episodic Future Thinking And Academic Goal Achievement, Braden Sanford

Honors Theses

Episodic future thinking is defined as the ability to mentally project oneself self into the future and pre-experience an event. Prospective memory, on the other hand, is often defined as remembering to complete future intentions. Prospective memory includes two kinds of prospective memory tasks: event-based, or prospective memory prompted by some form of external cue or event, and time-based, or a task that an individual must remember to complete at a specific time. One area that synthesizes these two subjects is the realm of goal achievement, specifically academic goal achievement. In this study, I explored how episodic future thinking, when …

Reactive And Regulative Temperament Dimensions, Emotion Regulation, And Concurrent Internalizing And Externalizing Pathology Among Youth With Adhd., Kirsten D. Leaberry

Electronic Theses and Dissertations

Emerging research has increasingly identified the detrimental effect of internalizing and externalizing comorbidity on the functioning of youth with Attention-Deficit/Hyperactivity Disorder (ADHD). Research in the broad child psychopathology literature has identified a variety of dispositional and developmental risk factors for psychopathology development in youth. However, a conceptual model of psychopathology development has yet to be developed and empirically evaluated in an ADHD sample. Children with ADHD may be particularly vulnerable to exhibiting high rates of psychopathology, given deficits in self-regulation prevalent in this population. The current study proposed and evaluated a theoretical model of distal and proximal risk factors for …

The Role Of Dopamine In Decision Making Processes In Drosophila Melanogaster, Michelle C. Bowers

Undergraduate Honors Theses

Understanding the neural processes that mediate decision making is a relatively new field of investigation in the scientific community. With the ultimate goal of understanding how humans decide between one path and another, simpler models such as Drosophila Melanogaster, the common fruit fly, are often utilized as a way of determining the neural circuits involved in these decision-making processes. One of the most important decisions flies make is the decision of where to lay their eggs (oviposit). Choosing the proper substrate upon which to lay eggs is a crucial decision that can ultimately impact their fecundity. This paper investigates the …

Self-Care Domains, Benefits Of Self-Care In Graduate-Level Training Programs, And Ways To Incorporate Self-Care Education And Practices In Graduate-Level Training Programs, Krystel Segovia

Dissertations

A literature review was conducted to examine the concept of self-care as a proactive means to manage the stressors of life, enhance professional competency, and live a well-balanced lifestyle, particularly for graduate-level psychology students. Different levels of distress, including stress, compassion fatigue, and burnout, were researched and discussed. The various domains of self-care were discussed as were the benefits of engaging in regular self-care practices. Finally, various ways to incorporate self-care into already established graduate-level training programs at universities and practicum training sites were discussed to enhance the training experience as well as mitigate burnout in the novel clinician.

Importance Of Mental Health Awareness In Schools, Alexandra Elliott

Capstone Projects and Master's Theses

We all have different experiences and beliefs that shape our perspectives and impact our mental health. The concept of mental health exists in Western civilization but is absent in others, so it is important to be sensitive when discussing the terminology of mental health by itself. There is ample evidence of a disproportionate amount of mental health issues among people living in low-income areas due to lack of resources in these communities. In fact, mental health resources are disproportionately accessible to white, affluent individuals in Western civilization. This senior capstone research project is intended to find ways to reach new …